1 files changed, 2 insertions, 2 deletions

diff --git a/src/sp_var_parser.c b/src/sp_var_parser.c
index cc75d83..2639991 100644
--- a/src/sp_var_parser.c
+++ b/src/sp_var_parser.c
@@ -33,8 +33,8 @@ static bool is_var_name_valid(const char *const name) {
   if (NULL == regexp_var || NULL == regexp_const) {
     return false;  // LCOV_EXCL_LINE
   }
-  if ((false == sp_is_regexp_matching(regexp_var, name)) &&
-      (false == sp_is_regexp_matching(regexp_const, name))) {
+  if ((false == sp_is_regexp_matching_len(regexp_var, VAR_AND_LEN(name))) &&
+      (false == sp_is_regexp_matching_len(regexp_const, VAR_AND_LEN(name)))) {
     return false;
   }
   return true;